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TH Preprints

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2025-06-12
05:50
Time-Dependent Precision Measurement of $B_s^0\rightarrow \phi \mu^+\mu^-$ Decay at FCC-$ee$ / Kwok, Tsz Hong (Zurich U.) ; Polonsky, Zachary (Zurich U.) ; Lukashenko, Valeriia (Zurich U.) ; Aebischer, Jason (CERN) ; Kilminster, Ben (Zurich U.)
We study the feasibility of measuring time-dependent $C\!P$ violation in the rare flavor-changing neutral current (FCNC) decay $B_s^0 \rightarrow \phi(\rightarrow K^+K^-) \mu^+ \mu^-$ at the FCC-$ee$. [...]
arXiv:2506.08089 ; CERN-EP-DRAFT-MISC-2025-007 ; CERN-TH-2025-095. - 38.
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2025-06-12
05:47
Numerical stability of force-gradient integrators and their Hessian-free variants in lattice QCD simulations / Schäfers, Kevin (Wuppertal U.) ; Finkenrath, Jacob (CERN) ; Günther, Michael (Wuppertal U.) ; Knechtli, Francesco (Wuppertal U.)
We investigate the numerical stability of force-gradient integrators and their Hessian-free variants within the molecular dynamics step of the Hamiltonian Monte Carlo algorithm in lattice QCD simulations. [...]
CERN-TH-2025-093 ; arXiv:2506.08813. - 18.
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2025-06-12
05:37
Event generation at MEPS@NLO accuracy in neutral and charged current DIS at the EIC / Meinzinger, Peter (Zurich U.) ; Reichelt, Daniel (CERN) ; Silvetti, Federico (Durham U., IPPP)
We present the first hadron-level predictions at MEPS@NLO precision for both neutral and charged current DIS at the EIC and the first application of the MEPS@NLO technique to charged current DIS in general. [...]
ZU-TH 43/25 ; CERN-TH-2025-110 ; IPPP/25/31 ; MCNET-25-13 ; arXiv:2506.08994. - 30.
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2025-06-06
06:38
Backtracking AdS flux vacua / Apers, Fien (Oxford U., Theor. Phys.) ; Montero, Miguel (Madrid, IFT) ; Valenzuela, Irene (Madrid, IFT ; CERN)
We introduce an algorithm (dubbed "flux backtracking") to reverse-engineer the brane picture from an AdS flux vacuum. [...]
CERN-TH-2025-109 ; IFT-25-062 ; arXiv:2506.03314. - 24.
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2025-06-05
06:47
On-shell recursion relations for higher-spin Compton amplitudes / Ema, Yohei (CERN) ; Gao, Ting (Minnesota U.) ; Ke, Wenqi (Minnesota U. ; Minnesota U., Theor. Phys. Inst.) ; Liu, Zhen (Minnesota U.) ; Mahbub, Ishmam (Minnesota U.)
We recursively construct tree-level electromagnetic and gravitational Compton amplitudes of higher-spin massive particles by the all-line transverse momentum shift. [...]
CERN-TH-2025-090 ; UMN-TH-4423/25 ; FTPI-MINN-25-05 ; arXiv:2506.02106. - 32.
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2025-06-04
05:30
1-loop renormalisability of integrable sigma-models from 4d Chern-Simons theory / Lacroix, Sylvain (Paris, LPTHE) ; Levine, Nat (Amsterdam U.) ; Wallberg, Anders (CERN ; Ecole Polytechnique, Lausanne)
Large families of integrable 2d sigma-models have been constructed at the classical level, partly motivated by the utility of integrability on the string worldsheet. [...]
CERN-TH-2025-107 ; arXiv:2505.23890. - 75.
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2025-06-03
06:03
Likelihoods for Stochastic Gravitational Wave Background Data Analysis / Franciolini, Gabriele (CERN) ; Pieroni, Mauro (CERN ; Madrid, Inst. Estructura Materia) ; Ricciardone, Angelo (Pisa U. ; INFN, Pisa) ; Romano, Joseph D. (CUNY, Graduate School - U. Ctr. ; Texas U., Brownsville, CGWA)
We present a systematic study of likelihood functions used for Stochastic Gravitational Wave Background (SGWB) searches. [...]
CERN-TH-2025-094 ; arXiv:2505.24695. - 25.
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2025-06-03
05:55
Roughening and dynamics of an electric flux string in a (2+1)D lattice gauge theory / Di Marcantonio, Francesco (Basque U., Bilbao) ; Pradhan, Sunny (Basque U., Bilbao) ; Vallecorsa, Sofia (CERN) ; Bañuls, Mari Carmen (Hannover, Max Planck Inst. Quantenopt. ; MCQST, Munich) ; Ortega, Enrique Rico (Basque U., Bilbao ; CERN ; Donostia Intl. Phys. Ctr., San Sebastian ; IKERBASQUE, Bilbao)
We investigate the roughening transition in the pure $\mathbb{Z}_2$ lattice gauge theory in (2+1) dimensions. [...]
arXiv:2505.23853 ; CERN-TH-2025-105. - 2025-05-29 - 21.
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2025-05-29
04:35
The anomalous magnetic moment of the muon in the Standard Model: an update / Aliberti, R. (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Aoyama, T. (Tokyo U., ISSP) ; Balzani, E. (INFN, Padua ; Padua U.) ; Bashir, A. (IFM-UMSNH, Michoacan ; Escuela Poli. Sup. U., Huelva) ; Benton, G. (Illinois U., Urbana) ; Bijnens, J. (Lund U.) ; Biloshytskyi, V. (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Blum, T. (Connecticut U. ; RIKEN BNL) ; Boito, D. (Sao Paulo U., Sao Carlos) ; Bruno, M. (Milan Bicocca U. ; INFN, Milan Bicocca) et al.
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, $a_\mu$, updating the first White Paper (WP20) [1]. [...]
arXiv:2505.21476 ; CERN-TH-2025-101 ; FERMILAB-PUB-25-0344-T ; INT-PUB-25-015 ; KEK Preprint 2025-22 ; LTH 1403 ; MITP-25-037 ; UWThPh 2025-15 ; ZU-TH 37/25 ; IPARCOS-UCM-25-029. - 188.
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2025-05-24
04:08
Cobordism Utopia: U-Dualities, Bordisms, and the Swampland / Braeger, Noah (Pennsylvania U., Dept. Math.) ; Debray, Arun (U. Kentucky, Lexington) ; Dierigl, Markus (CERN) ; Heckman, Jonathan J. (Pennsylvania U., Dept. Math. ; Pennsylvania U.) ; Montero, Miguel (Madrid, IFT)
The U-dualities of maximally supersymmetric supergravity theories lead to celebrated non-perturbative constraints on the structure of quantum gravity. [...]
CERN-TH-2025-103 ; IFT-025-51 ; arXiv:2505.15885. - 124.
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